Anemia is one type of red blood cell disorder. A lack of the mineral iron in your blood usually causes this disorder. Your body needs iron to produce the protein hemoglobin, which helps your red blood cells carry oxygen from your lungs to the rest of your body.
Heat transfer refers to the physical process by which heat energy moves from one area to another. The Heat Transfer Methods figure above illustrates various heat transfer methods. Branches above the fire are receiving heat by convection and radiation.
Answer. The three methods of heat transfer can occur in different ratios depending on the materials and environment. Radiation, for example, is the only method by which internal energy can be transferred through a vacuum. So when a hot object is near a cold one in space, 100% of the heating is by radiation.